title: Evaluation of Cisplatin as an electrochemotherapy agent for the treatment of incompletely excised mast cell tumors in dogs.
abstract: BACKGROUND
  Electrochemotherapy (ECT) couples the administration of anticancer drugs with the delivery of electric pulses that increase the drug uptake through the cell membranes, resulting in an improved efficacy.
  
  
  OBJECTIVE
  To evaluate the tolerability and efficacy of cisplatin (CDDP) as an ECT agent to prevent recurrence of incompletely resected mast cell tumors (MCTs).
  
  
  METHODS
  Thirty-seven dogs.
  
  
  METHODS
  Prospective study recruiting dogs with incompletely excised MCTs as confirmed by surgeon and pathology reports. After debulking, the tumor bed and margins were infiltrated with CDDP, and then exposed to trains of biphasic electrical pulses under sedation. Five minutes after the injection of the chemotherapy agent, sequences of 8 biphasic pulses lasting 50 + 50 μs each, were delivered in bursts of 1,300 V/cm for sclerosed and of 800 V/cm for exposed lesions, with caliper or needle array electrodes, respectively. A second session was performed 1 or 2 weeks later based on clinical considerations.
  
  
  RESULTS
  The treatment was well tolerated with minimal adverse effects. Twenty-nine dogs had no evidence of recurrence over the 6-year study period, 6 had tumor recurrence, 1 died of multiple cutaneous MCTs, and 1 died of unrelated causes. The estimated median time to recurrence was 1,200 days. Recurrence was not observed among the long-term (> 1 year) treated dogs.
  
  
  CONCLUSIONS
  ECT with CDDP appears effective in the treatment of incompletely resected MCT in dogs and could be a useful addition to the current options based on its low cost, limited toxicity, and ease of administration.
authors.affiliation: SAFU Department, Regina Elena Cancer Institute, Rome, Italy. info@enricospugnini.net
authors.forename: E P
authors.initials: EP
authors.lastname: Spugnini
authors.forename: B
authors.initials: B
authors.lastname: Vincenzi
authors.forename: G
authors.initials: G
authors.lastname: Citro
authors.forename: I
authors.initials: I
authors.lastname: Dotsinsky
authors.forename: T
authors.initials: T
authors.lastname: Mudrov
authors.forename: A
authors.initials: A
authors.lastname: Baldi
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000009:adverse effects / Q000627:therapeutic use; D002945:Cisplatin / Q000009:adverse effects / Q000627:therapeutic use; D004283:Dog Diseases / Q000188:drug therapy*; D004285:Dogs; D053672:Electrochemotherapy / Q000379:methods / Q000662:veterinary*; D005260:Female; D008297:Male; D012515:Mast-Cell Sarcoma / Q000188:drug therapy / Q000662:veterinary*; D009364:Neoplasm Recurrence, Local / Q000188:drug therapy / Q000662:veterinary; D011446:Prospective Studies; D016896:Treatment Outcome
chemical_list: D000970:Antineoplastic Agents; D002945:Cisplatin